Shipwreck hunters have discovered the wreck of a British submarine that sank near Greece in 1943, solving an 81-year-old mystery about its disappearance.
HMS Trooper, designated N91, went missing after a secret mission in early October 1943 to land three Greek resistance agents on Kalamos, an island on the west coast of Greece. The sub was then ordered to patrol in the Aegean Sea, where German forces were later known to have laid naval mines.
